Po'ipu's perfection is both its greatest asset and largest flaw. On the one hand, you won't find another beach on Kauai that appeals to everyone quite like Po'ipu. Snorkeling, swimming, boogie boarding, and surfing are all popular here, but so is lazing about on the warm golden sand. The downside to Po'ipu's popularity is there's very little chance for privacy here, especially in the peak travel season. If you want to face fewer crowds, plan your trip to Kauai and this beach for the spring or fall. You can also visit Kalapaki, which is located on Kauai's south coast as well.

A series of hotels flank Po'ipu, and directly east is the Po'ipu Beach Park, which has a lifeguard, picnic tables, showers, and changing rooms. The water here is separated by a sandbar; little kids wade around the left side's shallow, calm water while more advanced swimmers and snorkelers explore the open bay on the right side. You'll also find restaurants and surf shops nearby.